@Pirates_Parrot_ told Arrieta to "Be ready for the sea of black #BlackOut #BUCN #crowdisGoingToEatYoualive #walkTheplank @JArrieta34." Arrieta's response?
"Whatever helps keep your hope alive, just know, it doesn't matter. @Cubs," he wrote.
Whatever helps keep your hope alive, just know, it doesn't matter. @Cubs https://t.co/bJDN1wP0tS
"It's all in good fun," Arrieta said Tuesday. "I think it's just kind of a unique way to start interaction within the fan bases or with the players and fans. It's something I like to do."
He also likes to pitch, and heads into the Wild Card Game on a roll, having posted 20 consecutive quality starts.